story: A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity.:Glossary The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life. 
  
  Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term "having a gene" (e.g., "good genes," "hair colour gene") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.
questions: do genes evolve?
questions: what are polygenes?
questions: are all genetic traits visible?
questions: can genes mutate?
questions: what are different variants of genes called?
questions: how many specific genetic traits are named?
questions: what is a locus also called?
questions: is eye color visible?
questions: is blood type visible?
questions: are genes related to DNA?
questions: what is a gene?
answers: Yes
answers:  Genes evolve due to natural selection or survival of the fittest of the alleles.
answers: many different genes
answers:  Most biological traits are under the influence of polygenes (many different genes) 
answers: No
answers: Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, 
answers: Yes
answers: 
  Genes can acquire mutations in their sequence
answers: alleles
answers: different variants, known as alleles,
answers: Five
answers: Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life. 
answers: Region
answers: locus (or region
answers: Yes
answers:  Some genetic traits are instantly visible, such as eye colour or number of limbs,
answers: No
answers: and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life. 
answers: Yes
answers: A gene is a locus (or region) of DNA t
answers: DNA that encodes a functional RNA or protein product
answers: A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, 